ridgely



Nov. 8, 1927.

W. W. RIDGELY HEATER Filed Dec. 22, 1924 2 Sheets-Sheet 1 U @N .Jl m

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W. W. RIDGELY HEATER Filed Deo. 22, 1924 2 Sheets-Sheet 2 :v-orf ff@ /TrR/vavs Patented Nov. 8, 1927.

UNTED STTS P'NT BTFCE.

WILLIAM W. RIDGELY, OF HEART LAKE, PENNSYLVANA, ifaSSGNR, BY MESNE AS-SIGNMENTS, TO RIDGELY CGE-HDANY, OF SCRANTON, PENNSYLVANLA, .A`

CDRPO-RATION OF NEW JERSEY.

HEATER.

Application led December 22, 1924.

rlhis invention relates to heaters adapted to be used more particularlyfor burning culm and other fine coal although it 'is equally useful inburning coarser coal if desired.

The main object is to support the fire box in the combustion chamber insuch manner as to provide anextra supply of fresh heated air to thesurface of the fuel at various levcls for the purpose of increasing thecombustion of the fuel and also for burning practically all of the gasesreleased from the fuel and thereby to reduce to a minimum the smokecontent of the escaping products f of combustion and to greatly increasethe temperature of the heat developed from a given quantity of fuel. i

In other words, I have sought to produce a more economic combustion ofthe solid fuel and the gases generated therefrom so as to increase. theresultant heat `and reduce the smoke content of the escaping products.

One of the sp-ecilic objects is to support the lire box in thecombustion chamber in such manner as to provide vertical air passagebetween the walls of the fire box and combustion chamber from the ashpit to the top of the fire box and also to provide the walls of the firebox with openings therethrough the major portion of its length or heightso that fresh air may pass from the space around the fire box throughthe openings to thefuel at varying levels and also across the top of thefire box in case the lat? ter should be filled with fue] so as to heatthe. air in tr sit to the fuel for increasing combustion oit the fueland gases.

Another object is to make the lire box in sections and to providesuitable means where# by they may be supported and locked in operativeposition upon an underlying supporting ring carrying the grates whichform the bottom of the fire box.

Other objects and uses relating to specific part-s of the device will bebrought out in the followingdescription.

In the drawings:

r o Fioure l is a to i alanor a detached fire is l.

box embodying the various features of my invention, the front ends ofthe manually operated grate bars being broken away.

Figure 2 is a vertical sectional view taken on lin-e 2 2, Figure l,showing portion of the combustion chamber and ash box in sec- Serial No.75'`,467.

tion and the lire box in operative position therein.

Figure 8 is a horizontal sectional view taken in the plane of line 3 3,Figure 2.

Figure t is a perspective View of a de tached gratesupporting ring.

Figure 5 is a perspective View of one of the detached fire box sections.

As illustrated this heater comprises a shell 1 forming a combustionchamber Q in which is placed a lire box 3- haying a supporting ring lresting upon suitable lugs 5 of the ash box 6 said ring being providedwith means for supporting a series of grate bars 7- which areconnectedto each other by gears S for simultaneous rocking movement, theintermediate grate barsbeing provided withy extensions 9- through thefront side of the ash box for manual operation by a suitable shaker, notshown.

rihe lire box 3 is mounted within the combustion chamber 2 ,and, asidefrom thering l is composed of a series of similar upright segments 3arranged edge to edge in close juxtaposition around a common, verticalaxis and having the lower ends of'their adjacent edges provided withdownwardly extending lugs l0 which are seated'in suitable openings ll inthe ring 4 to hold the segments in fixed rclation yto the ring againstrelative lateral or c ircui'nferential movement and at the Asaine timepermitting said vsections'to be withdrawn upwardly from the ringerreplaced downwardly into `,operativeV connection therewith withoutdisturbing the ring frolu Yits normal position.

rilhe object in making the main body of the fire vbox in sections is topermit them to be more easily placed in operative position upoir thegrate ring or removedtherefrom through the fuel door of the heater. Thesupporting lugs 5 for the grate ring 4 are arranged in circumferentiallyspaced relation tov permit thefree passage of air from the ash box 6upwardly between them.

The marginal edge of the ring lt is" provided with a series of verticalopenings 1EZ therethrough communicating with the spaces between the lugs5 to permit the passage of air therethrough from the ash box upwardlybetween theY walls of the

